Question: What is the federated state located in the Weimar Republic?
Paraphrase: What is the unified state found within the Weimar Republic?
SPARQL (Wikidata):  select distinct ?sbj where { ?sbj wdt:P131 wd:Q41304 . ?sbj wdt:P31 wd:Q107390 } 
Answer: Free State of Schaumburg-Lippe, Free People's State of Württemberg, Free State of Brunswick, Republic of Baden, Free State of Anhalt, Free State of Oldenburg